CN213423740U - Ultra-low power consumption circuit of handheld device - Google Patents
Ultra-low power consumption circuit of handheld device Download PDFInfo
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- CN213423740U CN213423740U CN202022478349.XU CN202022478349U CN213423740U CN 213423740 U CN213423740 U CN 213423740U CN 202022478349 U CN202022478349 U CN 202022478349U CN 213423740 U CN213423740 U CN 213423740U
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Abstract
The utility model provides an ultra-low power consumption circuit of handheld device, it includes power source, button detection module, isolation module, host system, NMOS pipe and PMOS pipe, power source with the button S utmost point electric connection of PMOS pipe, the button with button detection module keep apart the module electricity and connect, button detection module with the host system electricity is connected, isolation module with the S utmost point electric connection of NMOS pipe, host system with the G utmost point electric connection of NMOS pipe, the D utmost point of NMOS pipe with the G utmost point electric connection of PMOS pipe, the D utmost point of PMOS pipe forms the feeder ear. The utility model provides an ultra-low power consumption circuit of handheld device has box, central quartz capsule and elasticity butt spare, elasticity butt spare with central quartz capsule both ends butt can realize the quick installation and the dismantlement of central quartz capsule, makes things convenient for the change of central quartz capsule.
Description
Technical Field
The utility model relates to an optic fibre coloring technology field, concretely relates to handheld device ultra-low power consumption circuit.
Background
The handheld device is generally powered by a battery, and the biggest problem of battery power supply is that the standby power consumption affects the standby time of the handheld device. When the handheld device is left unused for a long time, the device still consumes power. The power consumption is reduced by adopting a more complex logic circuit and a low-power consumption MCU, and the battery can still supply power to the system, so that the power consumption reduction method is suitable for occasions with larger capacity batteries or low standby time requirements. However, the handheld device is affected by the structural volume and other factors, and the battery capacity is limited by the volume and is not allowed to be larger, so that the standby power consumption is particularly important for the handheld device with small volume and ultra-long standby time.
SUMMERY OF THE UTILITY MODEL
The utility model provides a handheld device ultra-low power consumption circuit to solve among the prior art handheld device duration shorter technical problem.
The utility model provides a scheme as follows of above-mentioned technical problem:
an ultra-low power consumption circuit for a handheld device, comprising:
power source, button detection module, isolation module, host system, NMOS pipe and PMOS pipe, power source with the button the S utmost point electric connection of PMOS pipe, the button with button detection module the isolation module electricity is connected, button detection module with host system electricity is connected, the isolation module with the S utmost point electric connection of NMOS pipe, host system with the G utmost point electric connection of NMOS pipe, the D utmost point of NMOS pipe with the G utmost point electric connection of PMOS pipe, the D utmost point of PMOS pipe forms the power supply end.
Further, the key detection module comprises a capacitor C2, a zener diode Z1, a resistor R4 and a resistor R9, one end of the capacitor C2, one end of the zener diode Z1 and one end of the resistor R9 are grounded, the other end of the capacitor C2, the other end of the zener diode Z1 and the other end of the resistor R9 are connected with the main control module, one end of the resistor R4 is connected with the key, and the other end of the resistor R4 is connected with the main control module.
Further, the isolation module comprises a diode D3, a resistor R7 and a resistor R8, the anode of the diode D3 is connected to the key, the cathode of the diode D3 is connected to one end of the resistor R7, the other end of the resistor R7 is connected to one end of the resistor R8 and the main control module, and the other end of the resistor R8 is electrically connected to the S electrode of the NMOS transistor.
Further, the main control module comprises an MCU chip and a resistor R3, the MCU chip has a KEY pin and a CTOL pin, the other end of the capacitor C2, the other end of the zener diode Z1, and the other end of the resistor R9 are connected to the KEY pin of the main control module, one end of the resistor R4 is connected to the KEY, the other end of the resistor R4 is connected to the KEY pin of the main control module, the CTOL pin of the main control module is connected to one end of the resistor R3, and the other end of the resistor R3 is electrically connected to the resistor R8 and the G electrode of the NMOS transistor.
The utility model provides an ultra-low power consumption circuit of handheld device has box, central quartz capsule and elasticity butt spare, elasticity butt spare with central quartz capsule both ends butt can realize the quick installation and the dismantlement of central quartz capsule, makes things convenient for the change of central quartz capsule.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural diagram of an ultra-low power consumption circuit of a handheld device provided by the present invention;
fig. 2 is the structure diagram of the handheld device ultra-low power consumption circuit when the case cover is opened.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and fig. 2, for a handheld device ultra-low power consumption circuit provided by an embodiment of the present invention, it includes: power source 1, button 2, button detection module 3, isolation module 4, host system 5, NMOS pipe Q1 and PMOS pipe U5, power source 1 with the button 2 the S utmost point electric connection of PMOS pipe U5, button 2 with button detection module 3 the isolation module 4 electricity is connected, button detection module 3 with host system 5 electricity is connected, isolation module 4 with the S utmost point electric connection of NMOS pipe Q1, host system 5 with the G utmost point electric connection of NMOS pipe Q1, the D utmost point of NMOS pipe Q1 with the G utmost point electric connection of PMOS pipe U5, the D utmost point of PMOS pipe U5 forms the feeder terminal.
The main control module 5 detects the signal of the key 2 through the key detection module 3 to adjust the level of the G pole of the NMOS transistor Q1, so as to control the on/off of the PMOS transistor U5.
The key detection module 3 comprises a capacitor C2, a zener diode Z1, a resistor R4 and a resistor R9, one end of the capacitor C2, one end of the zener diode Z1 and one end of the resistor R9 are grounded, the other end of the capacitor C2, the other end of the zener diode Z1 and the other end of the resistor R9 are connected with the main control module 5, one end of the resistor R4 is connected with the key 2, and the other end of the resistor R4 is connected with the main control module 5.
The isolation module 4 comprises a diode D3, a resistor R7 and a resistor R8, the anode of the diode D3 is connected to the key 2, the cathode of the diode D3 is connected to one end of a resistor R7, the other end of the resistor R7 is connected to one end of a resistor R8 and the main control module 5, and the other end of the resistor R8 is electrically connected to the S electrode of the NMOS transistor Q1.
The main control module 5 comprises an MCU chip and a resistor R3, the MCU chip is provided with a KEY pin and a CTOL pin, the other end of the capacitor C2, the other end of the zener diode Z1, the other end of the resistor R9 is connected with the KEY pin of the main control module 5, one end of the resistor R4 is connected with the KEY 2, the other end of the resistor R4 is connected with the KEY pin of the main control module 5, the CTOL pin of the main control module 5 is connected with one end of the resistor R3, and the other end of the resistor R3 is electrically connected with the resistor R8 and the G electrode of the NMOS tube Q1.
In the present embodiment, the zener diode Z1 has a model of ZMM3V 3.
In this embodiment, the model of the NMOS transistor Q1 is 2N 7002.
A KEY pin of the MCU chip is an input port of the MCU and reads a KEY signal; and the CTOL pin of the MCU chip is an MCU output port and controls the NMOS tube to be switched on and off.
When the system is in a power-off state when the KEY 2 is not pressed, when the KEY 2 is pressed, a KEY pin of the MCU chip obtains a signal, a CTOL pin of the MCU chip outputs a high level, a G electrode of the NMOS tube Q1 is pulled high, and the NMOS tube Q1 is conducted; at this time, the G pole of the PMOS transistor U5 is pulled low, the PMOS transistor U5 is turned on, and the power supply terminal of the PMOS transistor U5 supplies power to the system.
When the KEY 2 is pressed again, the level of the KEY pin of the MCU chip changes, the CTOL pin of the MCU chip outputs a high level and is set to be low, the G pole of the NMOS tube Q1 is pulled down, the NMOS tube Q1 is disconnected, the G pole of the PMOS tube U5 is pulled up, the power supply end of the PMOS tube U5 stops supplying power, and at the moment, the whole system is in a power-off state and has no power consumption.
The utility model provides an ultra-low power consumption circuit of handheld device has box, central quartz capsule and elasticity butt spare, elasticity butt spare with central quartz capsule both ends butt can realize the quick installation and the dismantlement of central quartz capsule, makes things convenient for the change of central quartz capsule.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (4)
1. An ultra-low power consumption circuit for a handheld device, comprising: power source, button detection module, isolation module, host system, NMOS pipe and PMOS pipe, power source with the button the S utmost point electric connection of PMOS pipe, the button with button detection module the isolation module electricity is connected, button detection module with host system electricity is connected, the isolation module with the S utmost point electric connection of NMOS pipe, host system with the G utmost point electric connection of NMOS pipe, the D utmost point of NMOS pipe with the G utmost point electric connection of PMOS pipe, the D utmost point of PMOS pipe forms the power supply end.
2. The ultra-low power consumption circuit of claim 1, wherein the key detection module comprises a capacitor C2, a zener diode Z1, a resistor R4 and a resistor R9, one end of the capacitor C2, one end of the zener diode Z1 and one end of the resistor R9 are grounded, the other end of the capacitor C2, the other end of the zener diode Z1 and the other end of the resistor R9 are connected to the main control module, one end of the resistor R4 is connected to the key, and the other end of the resistor R4 is connected to the main control module.
3. The ultra-low power consumption circuit of claim 2, wherein the isolation module comprises a diode D3, a resistor R7 and a resistor R8, an anode of the diode D3 is connected to the key, a cathode of the diode D3 is connected to one end of the resistor R7, the other end of the resistor R7 is connected to one end of the resistor R8 and the main control module, and the other end of the resistor R8 is electrically connected to an S-pole of the NMOS transistor.
4. The ultra-low power consumption circuit of claim 3, wherein the main control module comprises an MCU chip and a resistor R3, the MCU chip has a KEY pin and a CTOL pin, the other end of the capacitor C2, the other end of the zener diode Z1 and the other end of the resistor R9 are connected with the KEY pin of the main control module, one end of the resistor R4 is connected with the KEY, the other end of the resistor R4 is connected with the KEY pin of the main control module, the CTOL pin of the main control module is connected with one end of the resistor R3, and the other end of the resistor R3 is electrically connected with the resistor R8 and the G electrode of the NMOS transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022478349.XU CN213423740U (en) | 2020-10-30 | 2020-10-30 | Ultra-low power consumption circuit of handheld device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022478349.XU CN213423740U (en) | 2020-10-30 | 2020-10-30 | Ultra-low power consumption circuit of handheld device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213423740U true CN213423740U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022478349.XU Active CN213423740U (en) | 2020-10-30 | 2020-10-30 | Ultra-low power consumption circuit of handheld device |
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| CN (1) | CN213423740U (en) |
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- 2020-10-30 CN CN202022478349.XU patent/CN213423740U/en active Active
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Address after: No. 5, 6, 10, 11, 12, 13, 14, 15, 5th Floor, R&D Building, No. 1, Modern Service Industry Base, Science and Technology Park, Huazhong University of Science and Technology, No. 13, Daxueyuan Road, East Lake New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee after: Wuhan Youweixin Technology Co.,Ltd. Address before: Room 302-4, 3rd Floor, Building 2#, No. 20, Daxueyuan Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province 430000 Patentee before: WUHAN UV LEDTEK Co.,Ltd. |